This week, his Justice Department filed a legal brief arguing that a judge should find Obamacare unconstitutional — a decision that would turn the insurance markets back into the Wild West and eliminate Medicaid coverage for millions of Americans. By at least one estimate, a full repeal could cost 20...

Mr. Trump isn’t a king; he doesn’t have the power to dispense with laws he dislikes. Put bluntly: Mr. Trump’s assault on Obamacare is illegal.

In the midterm elections this November, voters won’t just be picking candidates. They will also be determining Medicare’s immediate future.

The conclusion of the Koch-funded study is plain: “Medicare for All” would cover more people, increase the quality of coverage, and cost less than is currently being spent on health care.

If people are going to be rated by whether they listen to sad songs on Spotify or look up information about AIDS online, they should know, The risk of improper use is extremely high. And data scores are not properly vetted and validated and available for scrutiny.

Last November far too many people were complacent. Then they woke up to find that the inconceivable had happened. Is something similar about to go down with health care?

Maybe like Samson chained to the pillars, Trump just wants to bring Obamacare's whole structure tumbling down, even if it might kill his presidency, too. With this White House, you never know.

During the campaign, Trump posed as a master dealmaker. But you can’t make a deal if you don’t understand what’s being discussed.

The G.O.P. remains beholden to its richest, most conservative donors, many of whom espouse a doctrine of rolling back the government and cutting taxes, especially taxes applicable to themselves.

How is it possible that 90 percent of House Republicans are happily voting in favor of this moral abomination?